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Date: 2009-12-06 16:52:10 Volcanology Basalt Volcanic rocks Ultramafic rocks Phenocryst Tholeiitic magma series Aphanite Igneous rock Picrite basalt Petrology Igneous petrology Geology		Ore Bin / Oregon Geology magazine / journal Add to Reading List Source URL: www.oregongeology.org Download Document from Source Website File Size: 1.013,21 KB Share Document on Facebook

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